/*
 * @(#) $Header$
 *
 * Copyright (C) 2007  Forklabs Daniel Léonard
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

package ca.forklabs.media.jai;

import java.util.Collection;
import java.util.Vector;
import javax.media.jai.OpImage;
import ca.forklabs.baselib.util.Algorithm;
import ca.forklabs.baselib.util.Iterators;

/**
 * Class {@link OpImageUtil} provides useful routines for {@link OpImage}s.
 *
 * @author   <a href="mailto:forklabs at gmail.com?subject=ca.forklabs.media.jai.OpImageUtil">Daniel Léonard</a>
 * @version $Revision$
 */
public class OpImageUtil {

//---------------------------
// Constructor
//---------------------------

   /**
    * Only allow subclasses.
    */
   protected OpImageUtil() {
   // nothing
      }


//---------------------------
// Class methods
//---------------------------

   /**
    * Vectorizes the collection.
    * @param   <E>   the type of elements in the vector.
    * @param   collection   the collection.
    * @return   the collection as a vector.
    */
   public static <E> Vector<E> vectorize(Collection<E> collection) {
      Vector<E> vector;
      if (collection instanceof Vector) {
         vector = (Vector<E>) collection;
         }
      else {
         int size = collection.size();
         vector = new Vector<E>(size);
         Algorithm.copy(collection.iterator(), Iterators.backInserter(vector));
         }
      return vector;
      }

   }
